GCSP research stipend | Fall 2023

Characterizing Anti-Perovskite Films for Solid-State Electrolytes in Batteries

This semester’s project was designed to enhance the performance of last semester’s anti-perovskite films as solid-state electrolytes for use in battery cells, and focused on characterizing lithium oxygen nitrate, Li3ONO3. Thin films of this material were created by dissolving lithium nitrate, lithium oxide and ethanol, then blade coating the solution onto silicon substrates. After sintering, the films were analyzed using microscopy, X-ray diffraction, and ionic conductivity testing. With measurements of ionic conductivity greater than 10-5S/cm, Li3ONO3 appears to be a promising solid-state electrolyte in next-generation batteries.